ZyXEL 2WG Guida Utente

 Chapter 13 Content Filtering Screens

ZyWALL 2WG User’s Guide

Figure 171   SECURITY > CONTENT FILTER > General

The following table describes the labels in this screen. 

Table 76   SECURITY > CONTENT FILTER > General

General Setup

Enable Content Filter

Select this check box to enable the content filter. Content filtering works on 

HTTP traffic that is using TCP ports 80, 119, 3128 or 8080.
See 

 if you need to use content filtering for traffic on 

custom ports.

Enable Content Filter 

for VPN traffic 

Select this check box to have the content filter apply to traffic that the 

ZyWALL sends out through a VPN tunnel or receives through a VPN tunnel. 

The ZyWALL applies the content filter to the traffic before encrypting it or 

after decrypting it. 

Note: The ZyWALL can apply content filtering on the traffic 

going to or from the ZyWALL’s VPN tunnels. It does not 
apply to other VPN traffic for which the ZyWALL is not 
one of the gateways (VPN pass-through traffic). 

External Database 

Service General Setup

The external database content filtering service has the ZyWALL check an 

external database to find to which category a requested web page belongs. 

Enable External 

Database Content 

Filtering

Turn on external database content filtering to have the ZyWALL block or 

forward access to web pages depending on the ZyWALL’s external database 

content filtering settings.